What hand did you put him on here when your betting out the turn? I think in some instances checking behind him on the turn is a possibly good line, unless he is a maniac im not sure how many hands he could be playing here that you have dominated. There is a chance of a pocket pair less than Queens I would rule out some due to the preflop play or there is a chance he has a set already and if he had flopped it thats how it could have played out.
It gives him a chance to bluff on the river with a lesser hand which he would do with any ace and any pocket pair you could beat.
Looking at the hand again its scary as hell when he all of a sudden after being passive bets out but at this point its hard to throw it away. Its hard to put him on AK given the action and the call on the flop.
Glad to hear you won most of it back though
